File:Roman tutulus disc brooch (FindID 261985).jpg

English: A damaged and incomplete cast copper-alloy 2nd-century Roman disc brooch of the tutulus type. The circular brooch would have originally had six plain, peripheral lugs; one has been lost, that above the catch-plate. The lugs are external on a rim. This border has received a strike in the past leading to it becoming detached from the body of the brooch; this has resulted in some small losses to the latter. The main body is a convex cone that terminates in a knop, around which a dished disc, now very slightly abraded (Total H.: 8.45mm). This latter bears a pair of incisions towards its circumference, incisions echoed on the upper surface of the brooch's body towards the rim. On the lower surface is a concavity corresponding with the cone. On the circumferential ridge thus created is a double D-shaped lug, perforated to take a hinged pin. The iron axis bar has corroded in situ, as has the head of the pin, and a small, now bent, section of its body. At the opposite side, also aligned with a lug, is the catch-plate. Other than the damage and losses described, this brooch has survived well with a mid-green patina. Similar tutulus brooches can be found illustrated in Hattatt (2000, 347; e.g. ref. 1071).